Negative pressure suction machine for oral hospitals, clinics and pet hospitals
By combining a water storage tank and an automatic valve system with a piston compressor in the negative pressure suction machine, the problems of high noise, high power consumption, and energy inefficiency of existing negative pressure suction machines are solved, achieving low noise, low power consumption, and high negative pressure, while also reducing manufacturing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-06
AI Technical Summary
Existing negative pressure suction machines are noisy, have high power consumption, are not energy-efficient, and have high manufacturing costs. In addition, water ring vacuum pump type equipment requires continuous water injection, which is not environmentally friendly.
It adopts an upper and lower water storage tank, and realizes automatic control through four automatic valves and control circuits. Combined with a piston compressor, it forms a stable working cycle to reduce noise and power consumption and increase negative pressure value.
It achieves a low-noise, low-power, energy-saving, environmentally friendly, and high-negative-pressure operating state, reducing manufacturing costs.
Smart Images
Figure CN223975229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a negative pressure suction machine for use in dental hospitals, clinics and veterinary hospitals, specifically a negative pressure suction machine that uses a piston compressor to generate a suction effect. Background Technology
[0002] There are two common types of negative pressure suction machines on the market. One type is a blower-like negative pressure suction machine, which has disadvantages such as high noise, low negative pressure, high power consumption, and high manufacturing cost. The other type uses a water ring vacuum pump. This type of negative pressure suction machine requires continuous injection of tap water into the water ring vacuum pump to generate suction. Using this type of equipment has disadvantages such as being energy-inefficient, environmentally unfriendly, and having high manufacturing costs. Utility Model Content
[0003] The purpose of this invention is to provide a negative pressure suction machine for dental hospitals, clinics, and veterinary hospitals. It uses an upper water tank and a lower water tank, and four automatic valves are controlled by a control circuit to achieve automated control of the inlet and outlet of the upper and lower water tanks, the exhaust port, and the piston compressor to ensure stable and efficient operation. This results in low noise, low power consumption, and high negative pressure during operation.
[0004] The technical solution of this utility model is based on a chassis, an upper water tank, a lower water tank, automatic valves A, B, C, and D, a piston compressor, and a control circuit. Its key feature is that the upper and lower water tanks are respectively installed on the back panel inside the chassis. Automatic valve D is installed at the inlet of the upper water tank. The outlet of the upper water tank is connected to the inlet of the lower water tank via a pipe, and automatic valve A is installed on the pipe. Automatic valve C is installed at the outlet of the lower water tank, and automatic valve B is installed at the exhaust port of the lower water tank. The piston compressor is installed at the bottom of the chassis, and its negative pressure port is connected to the negative pressure port of the upper water tank via a pipe.
[0005] The working principle of this invention is based on the fact that piston compressors cannot be directly used for water pumping. This invention has two water storage tanks (upper and lower) installed inside the casing, along with four control valves: A, B, C, and D (automatic valves). When the machine is working, valves B and C are closed, while valves A and D are open. The machine first evacuates the air from both water storage tanks, and the connecting pipes to the outside of the machine also generate suction. If the machine continues to operate, after a certain period, the internal control circuit automatically closes valve D through an internal program, draining the water from the upper tank into the lower tank. Then, valve A is closed, and valves B and C are opened to drain all the water from the lower tank. This cycle continues. If the machine stops working, all valves open, draining all the water stored in the tanks.
[0006] The advantages of this invention are low noise, low power consumption, energy saving and environmental protection, high negative pressure value, simple structure and low manufacturing cost. It effectively solves the shortcomings of the two conventional negative pressure suction machines on the market. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0008] Figure 2 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation
[0009] according to Figure 1 , Figure 2 As shown, this utility model is based on a chassis 1, an upper water tank 2, a lower water tank 3, an automatic valve A 4, an automatic valve B 5, an automatic valve C 6, an automatic valve D 7, a piston compressor 8, and a control circuit 9. Its features include the upper water tank 2 and the lower water tank 3 being installed on the back panel inside the chassis 1, one above the other. An automatic valve D 7 is installed at the inlet of the upper water tank 2. The outlet of the upper water tank 2 is connected to the inlet of the lower water tank 3 via a pipe, and an automatic valve A 4 is installed on the pipe. An automatic valve C 6 is installed at the outlet of the lower water tank 3, and an automatic valve B 5 is installed at the exhaust port of the lower water tank 3. The piston compressor 8 is installed at the bottom of the chassis, and its negative pressure port is connected to the negative pressure port of the upper water tank 2 via a pipe.
Claims
1. A negative pressure suction machine for use in dental hospitals and clinics and pet hospitals, comprising a cabinet (1), an upper water storage tank (2), a lower water storage tank (3), an A automatic valve (4), a B automatic valve (5), a C automatic valve (6), a D automatic valve (7), a piston compressor (8), a control circuit (9), characterized in that, The upper water storage tank (2) and the lower water storage tank (3) are installed on the back plate in the machine box (1) respectively, a D automatic valve (7) is installed at the water inlet of the upper water storage tank (2), the water outlet of the upper water storage tank (2) is connected with the water inlet of the lower water storage tank (3) through a pipeline, an A automatic valve (4) is installed on the pipeline, a C automatic valve (6) is installed at the water outlet of the lower water storage tank (3), a B automatic valve (5) is installed at the exhaust port of the lower water storage tank (3), and a piston compressor (8) is installed at the bottom of the machine box, and the negative pressure port of the piston compressor (8) is connected with the negative pressure port of the upper water storage tank (2) through a pipeline.